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Old 03-11-2010, 12:49 PM   #1
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2nd Dumb Question Newb

Hi All:

When I was buying my coach my seller was giving me a lesson. He said on HWH Hydraulic Leveling Panel, AFTER I stated the engine, ALWAYS hit on the ON BUTTON and STORE BUTTON...?? Even if my jacks were not down? Is this a correct statement?

Say I stop for gas, shut off engine, when I start back up, do I still have to hit the on and store keys? It takes like threes minutes before these lights cycle and go off.

I told you it was a dumb question

Regards.... Jim (newb) P.
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Old 03-11-2010, 01:46 PM   #2
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Once stored you do not need to repeat. Unless the"Jacks Down" alarm sounds there is no reason to keep hitting the store.
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Old 03-11-2010, 01:56 PM   #3
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Agree with above. I never touch my hwh panel unless it to raise or lower the jacks.
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Old 03-11-2010, 02:55 PM   #4
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Hi Guys:

Thanks... I thought so but wanted to make sure.

Regards Jim P.
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Old 03-11-2010, 03:15 PM   #5
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The "store" button on the HWH panel has a dual function. It raises up the jacks and also opens up the valves that allow the airbags to be pressurized. You will know that your jacks may not be up due to the annoying chime. The only way to be sure your airbags are pressurized is by pressing the "store" button.
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Old 03-11-2010, 05:53 PM   #6
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Hi Harry:

Thats very interesting, I bet you that is why he did it.

That brings me to another question, when you turn off your engine, how fast does the air bag suspension dump?

I see on gages that there is about 115 lbs in front and back.

Regards Jim P.
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Old 03-11-2010, 06:46 PM   #7
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Originally Posted by pameridan04 View Post
Hi Harry:

Thats very interesting, I bet you that is why he did it.

That brings me to another question, when you turn off your engine, how fast does the air bag suspension dump?

I see on gages that there is about 115 lbs in front and back.

Regards Jim P.
Shutting off the engine does not initiate the process of dumping air from the suspension. On most of the HWH leveling system panels, the act of turning the system 'on' will dump the air. Or, you may have a separate 'dump' button. My HWH system dumps air as soon as I hit the 'on' button.
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Old 03-11-2010, 07:14 PM   #8
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Our 2005 Meridian has a dump button on the HWH Panel. One thing to note, when pressing the store button, leave it alone until it shuts itself off. I was told that if you shut it off when the jack lights go out, it is still not fully retracted. Just wait for it to finish and shut itself off. Then you are ready to go.

Another note...no such thing as a dumb question!
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Old 03-11-2010, 08:54 PM   #9
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I guess the key word here is DUMP. I am asking, when I turn OFF the engine, is all the air let out of my air shocks front and back automatically with every turn off? I used the word dump... meaning let out? does it do it instantly? Does it take a few minutes?

Thanks for all the answers so far.

Regards Jim P.
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Old 03-11-2010, 08:58 PM   #10
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Quote:
Originally Posted by pameridan04 View Post
Hi Harry:

when you turn off your engine, how fast does the air bag suspension dump?

Regards Jim P.
Jim.... As Smlranger mentioned, the bags will stay pressurized when you turn off the ignition. How long is dependent on how tight an air system each coach has. Mine will stay up about 10 days and then the rear will be the first to go down. Some coaches stay up for only a couple of days.

The way my coach dumps the air is by turning on the HWH system's auto level mode or by pushing the air dump button. This can vary depending on the model of the HWH system.

If you have a good functioning air system there should be no need to push the "store" button, unless you let the suspension air down by pushing the "dump" button and then not deploying the levelers after the air dump has completed.
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Old 03-12-2010, 08:43 AM   #11
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Hi Harry:

Ok I think I got it. So if I am going to strore my coach, say over the winter months, should I dump my air bags manually or just let it happen on it's own ? Mine has the down arrows and says dump on the HWH control panel.

Thanks for all your help guys, don't know what I would do without you.

Jim P.
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Old 03-12-2010, 09:04 AM   #12
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Hi Harry:

Ok I think I got it. So if I am going to strore my coach, say over the winter months, should I dump my air bags manually or just let it happen on it's own ? Mine has the down arrows and says dump on the HWH control panel.

Thanks for all your help guys, don't know what I would do without you.

Jim P.
Jim, if you park your coach for 'storage,' as previously noted the air will eventuallly leak off (in days) and the coach will settle on its suspension. Personally, I store my coach with the jacks down to level the coach, so my air is dumped during that procedure. My theory, however flawed, is that raising/leveling the coach with the jacks takes some of the weight off the tires (minimizing flat spots) and also keeps the air suspension bags from remaining in the crumpled position (with no air in bags and coach laying low, the bags assume a deflated and distorted position). It has worked for me in the 5 years I've had a coach with air suspension.

Another recommendation is to drive (exercise) the coach at least once a month, avoiding prolonged periods of storage. This helps the tires, the lubricants, etc. I take ours for a drive to the store, etc. once monthly. I run the genset with enough electrical stuff turned on to give it exercise. The key is to drive the coach far enough to get the engine and tranny temps up to normal.
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Old 03-12-2010, 12:15 PM   #13
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Before we depart I visually check that jacks are retracted and I don't hear any air leaks.

I have had a few problems with sticky air bag leveling valves. The symptom is that the airpressure doesn't come up and you hear hissing noise near leveling valve(s). One time I releveled the coach then stored the jacks again. Other time I positioned myself over the rear axle(inside the coach near the shower) and rocked left/right in an attempt to get the valve off the dead spot.

When this first happened I thought the air bag bleed valve was stuck open. I called HWH and they diagnosed problem as air bag valve. On the 36G I think we have 3 valves, 2 in rear and 1 in front that control ride height via the air bags
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Old 03-12-2010, 12:38 PM   #14
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Jim, if you park your coach for 'storage,' as previously noted the air will eventuallly leak off (in days) and the coach will settle on its suspension. Personally, I store my coach with the jacks down to level the coach, so my air is dumped during that procedure. My theory, however flawed, is that raising/leveling the coach with the jacks takes some of the weight off the tires (minimizing flat spots) and also keeps the air suspension bags from remaining in the crumpled position (with no air in bags and coach laying low, the bags assume a deflated and distorted position). It has worked for me in the 5 years I've had a coach with air suspension.

Another recommendation is to drive (exercise) the coach at least once a month, avoiding prolonged periods of storage. This helps the tires, the lubricants, etc. I take ours for a drive to the store, etc. once monthly. I run the genset with enough electrical stuff turned on to give it exercise. The key is to drive the coach far enough to get the engine and tranny temps up to normal.
That's seems like a pretty smart thing to do. I was thinking about dropping the jack in storage, so you saved me from asking another dumb question.

Thanks for all your help. I'm getting there, slowly but surely..

Jim P.
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